Hard Disk Drive

History

Hard disk is general developed by the IBM since 1956.it store large scale of data storage with use of general purpose computers. The embedded system such as RAID system, storage area network, network attached storage that enable is provide to large volume of data. The hard disk is usually expanded into consumer application such as digital video recorder, cell phone, camcorder, and digital audio players and video games are involved.

GENERAL

A Hard disk is nonvolatile storage device. it is a storage device.storeage data in gigabyte or tar byte. This media have rotating rigid plotter on a motor drive with a spindle. First hard disk drive is invented by IBM in 1956.you have to seen bellow figure the structure of hard disk drive.

Structure of Hard Disk Drive

Hard Disk Formatting

In modern hard disk such as SAS and SATA has logical and physical block enables. The process of relating these logical blocks to their physical location on the hard disk is call low level of formatting in the case of high level of formatting write the file system on this block.

Manufactures

Company name are given bellow that manufactures different hard disk such as.

• 1967 Hitachi
• 1967 Toshiba
• 1979 Seagate technology
• 1988 western Digital
• 1990 MiniScribe
• 1994 Quantum
• 1996 Conner Peripherals which developed by Seagate
• 2000 requires Maxtor for Quantum HDD.
• 2003 Hitachi global storage technology
• 2006 Seagate acquired Maxtor
• 2009 Toshiba acquires Fujitsu HDD